JPS63293313A - Display unit for clamping force of joining section - Google Patents

Display unit for clamping force of joining section

Info

Publication number
JPS63293313A
JPS63293313A JP12865487A JP12865487A JPS63293313A JP S63293313 A JPS63293313 A JP S63293313A JP 12865487 A JP12865487 A JP 12865487A JP 12865487 A JP12865487 A JP 12865487A JP S63293313 A JPS63293313 A JP S63293313A
Authority
JP
Japan
Prior art keywords
color
bottom plate
color developer
top plate
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12865487A
Other languages
Japanese (ja)
Inventor
大河内 恒雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12865487A priority Critical patent/JPS63293313A/en
Publication of JPS63293313A publication Critical patent/JPS63293313A/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明に、部材の接合部の接合状態を確認するための
締付力表示装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a tightening force display device for confirming the joint state of joints of members.

〔従来の技術〕[Conventional technology]

第6図は従来における部材の接合部を示しておシ、図に
おいて、(1)は部材、(2)はこの部材(1)に接合
される他の部材、(3)はこの部材(1)と(2)とを
接合させるためのボルト、(4)はボルト(3)と部材
(2)との間に介装された座金である0なお、部材(2
)Kはボルト(3)を挿通させるための貫通孔が形成さ
れ、部材(1)にはボルト(3)用のめねじが刻設され
た孔が形成されている。
FIG. 6 shows a conventional joining part of members. In the figure, (1) is a member, (2) is another member joined to this member (1), and (3) is this member (1). ) and (2), and (4) is a washer interposed between the bolt (3) and the member (2).
) K is formed with a through hole for inserting the bolt (3), and the member (1) is formed with a hole with an internal thread for the bolt (3).

しかして部材(1)と(2)とを接合する場合には、部
材(1)と(2)とを重ね合わせ、座金(4)を介装し
て、ポルト(3)を部材(2)の貫通孔に挿通し、かつ
部材(1)の孔にねじ込み、スパナ等の工具を用いてこ
のボルト(81を締め付けることにより、両部材(1)
、(2)゛を接合している。
When joining members (1) and (2), the members (1) and (2) are overlapped, the washer (4) is interposed, and the port (3) is attached to the member (2). By inserting the bolt (81) into the through hole of the member (1), screwing it into the hole of the member (1), and tightening this bolt (81) using a tool such as a wrench, both members (1)
, (2) ゛ are joined.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、上記のような従来の部材接合手段では、
接合状態を確認するために、例えば所定の締付はトルク
でボルトを締付けることができるスパナ(いわゆるトル
クレンチ)を用いて締付けると、締付は作業の度に締付
はトルクを設定しこれを確認しなくてはならず、設定や
確認に手間がかかり、確認忘れが生じるという問題点が
あった。
However, with the conventional member joining means as described above,
To check the joint condition, for example, if you use a wrench (so-called torque wrench) that can tighten bolts to a specified torque, set the torque each time you tighten the bolt. There was a problem in that it took time and effort to set up and confirm, and it was easy to forget to confirm.

また、上述のようなトルクレンチの代りに通常のスパナ
を用いてボルトを締付けた場合には、締付は作業後に、
締付圧力測定器を用いて締付圧力を測定しなければなら
ず、測定の手間がかかるとともに、測定忘れが生じると
いう問題点もあった0この発明は上記のような問題点を
解消するためになされたもので、ボルトの締付圧力の確
認が第三者でも容易にでき、また締付は確認の手間を著
しく軽減できる接合部の締付力表示装置を得ることを目
的とする。
Also, if you tighten the bolts using a regular spanner instead of the torque wrench as mentioned above, tighten the bolts after the work.
It is necessary to measure the tightening pressure using a tightening pressure measuring device, which takes time and effort, and there is also the problem of forgetting measurements. This invention aims to solve the above problems. The object of the present invention is to provide a tightening force display device for a joint, which allows even a third party to easily confirm the tightening pressure of a bolt, and which significantly reduces the trouble of confirming tightening.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係る接合部の締付力表示装置は、ボルト等の
締結部材により複数の接合部材を締結固定する際に、介
装部材を上記接合部材と締結部材との間に介在させると
ともに、この介装部材を、底板と、この底板に対向して
配置された上板と、底板と上板との間に介装された発色
剤及び顕色剤とから構成し、上記上板は光が透過可能と
し、上記発色剤及び顕色剤は両板に加わる圧力を発色に
よシ表示可能にしたものである。
The tightening force display device for a joint according to the present invention, when fastening and fixing a plurality of joint members with a fastening member such as a bolt, interposes an intervening member between the joint member and the fastening member. The intervening member is composed of a bottom plate, a top plate disposed opposite to the bottom plate, and a color forming agent and a color developing agent interposed between the bottom plate and the top plate. The color forming agent and the color developing agent are made to be able to display the pressure applied to both plates by color development.

〔作用〕[Effect]

この発明においては、底板と上板との間に発色剤及び顕
色剤を介装させたため、両板に圧力が加わると発色をし
、この色彩の変化は、光が透過可能な上板を介して、作
業者でも作業者以外の第三者でも外部から容易に確認す
ることができる。
In this invention, a color forming agent and a color developer are interposed between the bottom plate and the top plate, so that when pressure is applied to both plates, color develops, and this color change is caused by the top plate through which light can pass. Through this, both the operator and a third party other than the operator can easily confirm the information from the outside.

〔実施例〕〔Example〕

以下この発明の一実施例を図面を参照しながら説明する
。第1〜6図はこの発明の第1実施例を示しており、第
2図は従来技術を示す第6図に相当する図である。第2
図中(1)、(2)はそれぞれ接合部材、(81はこれ
ら2枚の接合部材(1)、(2)を締結固定するための
締結部材であって、この実施例ではボルトの場合を示し
ている。(4)は接合部材(2)とボルト(81との間
に介在させた板状の介装部材でめる0なお、従来と同様
に、部材(1)にはめねじが刻設された孔が形成され、
部材(2)にはボルト(3)用の貫通孔が形成されてい
る。
An embodiment of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of the present invention, and FIG. 2 is a diagram corresponding to FIG. 6 showing the prior art. Second
In the figure, (1) and (2) are respective joining members, and 81 is a fastening member for fastening and fixing these two joining members (1) and (2), and in this example, bolts are used. (4) is a plate-shaped intervening member interposed between the joining member (2) and the bolt (81).As in the past, member (1) has an internal thread. holes are formed,
A through hole for a bolt (3) is formed in the member (2).

第1図は介装部材(4)の縦断面を示してお9、図示の
ようにこの介装部材(4)は円板状をなし、中心部には
ボルト(3)を挿通させるための貫通孔(b)−Jに穿
設されている。(6)は下面(7ンが接合部材(2)に
接触する底板であり、金属、FRB又はプラスチック樹
脂材料等の材料で作られているQ(3)は底板(6)に
対向して配置され、光が透過可能な上板であり、透明プ
ラスチック又はガラス系透明材料等の透明又は半透明の
材料で作られている。
Figure 1 shows a longitudinal section of the intervening member (4)9. As shown, the intervening member (4) has a disc shape, and the center part has a hole for inserting the bolt (3). The through hole (b)-J is bored. (6) is the bottom plate whose lower surface (7) contacts the joining member (2), and Q (3) made of material such as metal, FRB or plastic resin material is placed opposite the bottom plate (6). The upper plate is made of transparent or translucent material such as transparent plastic or glass-based transparent material.

(9)は例えばロイコ染料等を用いた発色剤、■)は顕
色剤であシ、発色剤(9)は顕色剤−に触れると固有の
色彩を呈する性質を有している。これら発色剤(9)及
び顕色剤α0)は、底板(6)と上板(3)との間に介
装されて両板(6)、(3)に加わる圧力を発色により
表示可能になっている。この発色剤(9)と顕色剤(1
0) Kついては、底板(6)と上板(3)のうち一方
の板に発色剤(9)を、他方の板に顕色剤a■tイa又
は貼付することによりそれぞれ付着させている。この第
1図に示すものは、マイクロカプセルに封入された発色
剤(9)を上板(3)の下面に塗布し、同じくマイクロ
カプセルに封入された顕色剤Cl0) ft底板(6)
の上面に塗布した場合を示しているが、発色剤(9)と
顕色剤−とを上下逆にしてもよい。
(9) is a color former using, for example, a leuco dye, (2) is a color developer, and the color former (9) has the property of exhibiting a unique color when it comes into contact with the color developer. These color forming agent (9) and color developing agent α0) are interposed between the bottom plate (6) and the top plate (3), and can display the pressure applied to both plates (6) and (3) by coloring. It has become. This color former (9) and color developer (1
0) For K, the color former (9) is attached to one of the bottom plate (6) and the top plate (3), and the color developer (9) is attached to the other plate by applying or pasting the color developer a. . In the case shown in Fig. 1, a color developer (9) encapsulated in microcapsules is applied to the lower surface of the top plate (3), and a color developer Cl0)ft, also encapsulated in microcapsules, is applied to the bottom plate (6).
Although the color forming agent (9) and the color developing agent (9) are shown in the figure, they may be placed upside down.

次に上記発色剤(9)に用いる無色染料であるロイコ染
料の分子構造と各物質が発色した際の固有の色彩とを下
記に示す。
Next, the molecular structure of the leuco dye, which is a colorless dye used as the coloring agent (9), and the unique colors of each substance when colored are shown below.

(ローダミンラクタム系) (OH3)2N     N(CH3)2(OH3)2
N    N(OH3)2(02H,)2N     
N(02H,)2(青味赤) (フルオラン系) p′ (黄橙)      (ピンク) (朱赤)       (暗線) (黒) 他に発色剤(9)としていわゆる「カプセルオイル」を
用いることもできるが、この物質の名称と分子構造とを
下記に示す。
(Rhodamine lactam type) (OH3)2N N(CH3)2(OH3)2
N N(OH3)2(02H,)2N
N(02H,)2 (blueish red) (fluorane type) p' (yellow-orange) (pink) (vermilion red) (dark line) (black) In addition, so-called "capsule oil" may be used as a coloring agent (9). However, the name and molecular structure of this substance are shown below.

ポリ塩素化ビフェニル     アルキルナフタリンジ
アリルアルカン        アルキルビフェニル水
素化ターフェニル    トリアリルジメタンフェニレ
ンオキサイド   アルキルベンゼンR2”3 R4 ベンジルナソタレン    ジアリルアルキレンアリル
インダン 次に上記顕色剤−としては、無機化合物系では「活性ク
レー」が用いられ、有機化合物系では下記に示す分子構
造をもつ物質が用いられる。
Polychlorinated biphenyl Alkylnaphthalene diallylalkane Alkylbiphenyl hydrogenated terphenyl Triallyl dimethane Phenylene oxide Alkylbenzene R2"3 R4 Benzylnasotalene Diallylalkylene Allylindane Next, as the above color developer, inorganic compounds include "activated clay" is used, and for organic compounds, substances with the molecular structure shown below are used.

OHOHOH RRR R=アルキル基、アリル基、アラルキル基、アルキルア
リル基、ハロゲン基など RIR’−水X、ハロゲン、ヒドロキシル基、ニトロ基
、アルキル基、アリル基、 アラリル基、アルキルアリル基など 上記発色剤(9)及び顕色剤−に用いるカプセル化剤と
しては、ゼラチン、アラビヤゴム、0M01尿素樹脂等
があり、バインダーとしては、PVA、デンプン、8B
R1アクリル系エマルジヨン等がある。
OHOHOH RRR R = alkyl group, allyl group, aralkyl group, alkylaryl group, halogen group, etc. RIR'-water X, halogen, hydroxyl group, nitro group, alkyl group, allyl group, aralyl group, alkylaryl group, etc. Color former Encapsulants used for (9) and color developer include gelatin, gum arabic, 0M01 urea resin, etc., and binders include PVA, starch, 8B
Examples include R1 acrylic emulsion.

また、その他、必要に応じて、酸化防止剤、UV吸収剤
、融点降下剤、耐水化剤、増感剤、滑剤、消泡剤などが
用いられる。
In addition, antioxidants, UV absorbers, melting point depressants, waterproofing agents, sensitizers, lubricants, antifoaming agents, and the like may be used as necessary.

上記構成のものにおいて、まず、第2図に示すように、
接合部材(1)ζ(2)とを重ね、介装部材(4)全介
装して、ボルト(3)を介装部材(4)の貫通孔(6)
と部材(2)の貫通孔とに挿通し、次いで部材(1)の
孔にねじ込み、スパナ等の工具を用いてこのボルト(3
)を締め付けることにより、両部材(1)、(2)を接
合する。
In the above configuration, first, as shown in Fig. 2,
The joining member (1) and ζ (2) are overlapped, the intervening member (4) is fully interposed, and the bolt (3) is inserted into the through hole (6) of the intervening member (4).
and the through hole of member (2), then screw it into the hole of member (1), and tighten this bolt (3) using a tool such as a spanner.
) to join both members (1) and (2).

このポル) (81の締め付けによシ、ボルト(3)と
接合部材(2)との間に介在する介装部材(4)には第
1図中の上下から圧縮力が加わることになる。この圧縮
力が所定値以上になると、底板(6)と上板(3)との
間に介装された発色剤(9)と顕色剤翰のマイクロカプ
セルが破壊されて、このカプセル内に封入されていた発
色剤が顕色剤に触れて化学反応を起こし、これにより発
色剤が固有の色彩に発色する。この発色剤の色彩は透明
な上板(3)を介して外部から視覚的に確認することが
できる。したがって従来必要であったトルクレンチや締
付圧力測定器等が不要となる。この発色が起こる所定の
圧力を、第5図に示すように文字で表示するようにすれ
ば、締付圧力を容易に確認することができる。この文字
表示の手段としては、例えば、第3図のように、rl 
00KfJの文字形状の透明部が形成された非透明の板
を、上板(3)上面全体に覆設しておけば、圧力付加に
よって該文字部が発色することになる。
Due to this tightening of the bolt (81), a compressive force is applied from above and below in FIG. 1 to the intervening member (4) interposed between the bolt (3) and the joining member (2). When this compressive force exceeds a predetermined value, the microcapsules containing the coloring agent (9) and the coloring agent pen interposed between the bottom plate (6) and the top plate (3) are destroyed, and When the enclosed color former comes into contact with the color developer, a chemical reaction occurs, which causes the color former to develop a unique color.The color of this color former is visually visible from the outside through the transparent top plate (3). Therefore, there is no need for torque wrenches, tightening pressure measuring instruments, etc. that were required in the past.The predetermined pressure at which this coloring occurs can be displayed in letters as shown in Figure 5. For example, the tightening pressure can be easily confirmed.As a means of displaying this character, for example, as shown in FIG.
If a non-transparent plate on which a transparent part in the shape of the letters 00KfJ is formed is placed over the entire upper surface of the upper plate (3), the text part will develop color when pressure is applied.

また、該文字形状をなし、上板(3)と同じ色彩のもの
を該上板(3)に設けておけば、圧力付加によって、該
文学部以外の全体部が発色し、これによυ文字が判読で
きることになる。
In addition, if the upper plate (3) is provided with a material that has the same character shape and the same color as the upper plate (3), the entire area other than the literature section will develop color due to the application of pressure, and this will cause the υ letter to become colored. becomes legible.

第4図はこの発明の第2実施例を示しており、この実施
例のものは、底板(6)と上板(3)のうち一方の板に
発色剤と顕色剤とを付着させた構成であって、この図で
は、共にマイクロカプセルに封入された発色剤(9)と
顕色剤−とを、上板(3)の下面に塗布した場合を示し
ている。
FIG. 4 shows a second embodiment of the present invention, in which a color forming agent and a color developer are attached to one of the bottom plate (6) and the top plate (3). This figure shows a case where a color former (9) and a color developer, both encapsulated in microcapsules, are applied to the lower surface of the upper plate (3).

第5図はこの発明の第5実施例を示しており、この実施
例のものは、発色剤(9)及び顕色剤−がそれぞれ封入
されているマイクロカプセルの強度を異ならせて、該発
色剤(9)及び顕色剤(至)を、(、)〜(d)のよう
な帯状に付着させ、各帯状部(a)〜(d)を異なつた
圧力で発色させる構成としている。即ち、例えば帯状部
(a)のマイクロカプセルは締付力50y4f殉誹で、
帯状部(b)のマイクロカプセルは締付力100に9f
で、帯状部(c)のマイクロカプセルは締付力200に
9fで、それぞれ破壊するようにしておけば、発色した
帯状部の場所を視覚的に確認することによって、締付力
の値を容易に判別することができる。
FIG. 5 shows a fifth embodiment of the present invention. In this embodiment, the strength of the microcapsules in which the color former (9) and the color developer are encapsulated is varied, and the color former is The agent (9) and the color developer (to) are attached in strips as shown in (,) to (d), and the strips (a) to (d) are colored under different pressures. That is, for example, the microcapsule in the strip part (a) has a tightening force of 50y4f,
The microcapsules in the strip part (b) have a tightening force of 100 and 9f.
If the microcapsules in the strip (c) are destroyed with a clamping force of 200 and 9f, the value of the clamping force can be easily determined by visually checking the location of the colored strip. can be determined.

なお、上記各実施例では接合部材が2枚の場合を示した
が、複数であればよく、6枚以上であってもよい。また
第1.4.5図には介装部材(4)が円板状の場合を示
したが、円形に限られるものではなく矩形やその地異形
のものであってもよい。
In addition, in each of the above embodiments, the case where there are two joining members is shown, but it is sufficient if there is a plurality of joining members, and there may be six or more joining members. Further, although FIG. 1.4.5 shows the case where the intervening member (4) is disk-shaped, it is not limited to a circular shape, but may be rectangular or a variant thereof.

ところで、上板(3)に充分な強度があれば、底板(6
)に省略してもよい。
By the way, if the top plate (3) has sufficient strength, the bottom plate (6)
) may be omitted.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したとおり、底板と、光が透過可能
な上板との間に、発色剤及び顕色剤を介装させ、両板に
圧力が加わると発色をする構成をとったことから、上板
を介して外部から、締付部材による締付力を視覚的VC
確認できることとなシ、締付けの有無の確認の手間を著
しく軽減し、かつ確実な確認ができる。
As explained above, this invention has a structure in which a color former and a color developer are interposed between the bottom plate and the top plate through which light can pass, and when pressure is applied to both plates, the color develops. , visual VC of the tightening force by the tightening member from the outside via the upper plate.
By being able to confirm this, the time and effort required to confirm the presence or absence of tightening can be significantly reduced, and the confirmation can be made with certainty.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明の第1実施例を示す縦断面図、第2図
は同じく接合部を示す正面図、第3図は同じく介装部材
の平面図、第4図はこの発明の第2実施例を示す第1図
相当図、第5図はこの発明の第5実施例を示す第1図相
当図、第6図は従来の接合部を示す第2図相当図である
。 (1) I (2) :接合部材   (3):締結部
材(4):介装部材     (6):底板(3):上
板       (9):発色剤−:顕色剤    (
−)〜(d):帯状部なお、各図中同一符号は同−又は
相当部分を示す0
FIG. 1 is a longitudinal cross-sectional view showing a first embodiment of the present invention, FIG. 2 is a front view showing the joint, FIG. 3 is a plan view of the intervening member, and FIG. 4 is a second embodiment of the invention. FIG. 5 is a view equivalent to FIG. 1 showing an embodiment, FIG. 5 is a view equivalent to FIG. 1 showing a fifth embodiment of the present invention, and FIG. 6 is a view equivalent to FIG. 2 showing a conventional joint. (1) I (2): Joining member (3): Fastening member (4): Intervening member (6): Bottom plate (3): Top plate (9): Color former -: Color developer (
−) to (d): Band-shaped portions The same reference numerals in each figure indicate the same or equivalent parts.

Claims (4)

【特許請求の範囲】[Claims] (1)複数の接合部材をボルト等の締結部材により締結
固定する際に、上記接合部材と締結部材との間に介装部
材を介在させ、この介装部材を、底板と、この底板に対
向して配置され、光が透過可能な上板と、この底板と上
板との間に介装されて両板に加わる圧力を発色により表
示可能な発色剤及び顕色剤とから構成したことを特徴と
する接合部の締付力表示装置。
(1) When a plurality of joining members are fastened and fixed using fastening members such as bolts, an intervening member is interposed between the joining member and the fastening member, and this intervening member is placed between the bottom plate and the bottom plate. The color forming agent and the color developer are interposed between the bottom plate and the top plate and can display the pressure applied to both plates by coloring. Features a tightening force display device for joints.
(2)底板と上板のうち一方の板に発色剤を、他方の板
に顕色剤をそれぞれ付着させたことを特徴とする特許請
求の範囲第1項記載の接合部の締付力表示装置。
(2) A tightening force display for a joint according to claim 1, characterized in that a color former is attached to one of the bottom plate and the top plate, and a color developer is attached to the other plate. Device.
(3)底板と上板のうち一方の板に発色剤と顕色剤とを
付着させたことを特徴とする特許請求の範囲第1項記載
の接合部の締付力表示装置。
(3) The tightening force display device for a joint according to claim 1, wherein a color former and a color developer are attached to one of the bottom plate and the top plate.
(4)発色剤及び顕色剤を、これらが封入されているマ
イクロカプセルの強度を異ならせて帯状に付着させ、各
帯状部を異なつた圧力で発色させる構成としたことを特
徴とする特許請求の範囲第1項ないし第3項のいずれか
1項に記載の接合部の締付力表示装置。
(4) A patent claim characterized in that a color former and a color developer are attached to microcapsules encapsulated in strips with different strengths, and each strip is colored under different pressures. A tightening force display device for a joint according to any one of items 1 to 3.
JP12865487A 1987-05-26 1987-05-26 Display unit for clamping force of joining section Pending JPS63293313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12865487A JPS63293313A (en) 1987-05-26 1987-05-26 Display unit for clamping force of joining section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12865487A JPS63293313A (en) 1987-05-26 1987-05-26 Display unit for clamping force of joining section

Publications (1)

Publication Number Publication Date
JPS63293313A true JPS63293313A (en) 1988-11-30

Family

ID=14990152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12865487A Pending JPS63293313A (en) 1987-05-26 1987-05-26 Display unit for clamping force of joining section

Country Status (1)

Country Link
JP (1) JPS63293313A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004317510A (en) * 2003-04-11 2004-11-11 Hilti Ag Measuring instrument
JP2010127298A (en) * 2008-11-25 2010-06-10 Nippon Fastener Kogyo Kk Washer
JP2011058913A (en) * 2009-09-09 2011-03-24 Railway Technical Res Inst Measurement system and measurement method of earthquake impact force
JP2011094975A (en) * 2009-10-27 2011-05-12 Railway Technical Res Inst System and method for measuring earthquake impact force
JP2011094976A (en) * 2009-10-27 2011-05-12 Railway Technical Res Inst System and method for measuring earthquake impact force
JP2016031393A (en) * 2014-07-27 2016-03-07 日本バルカー工業株式会社 Teaching or training device of tightened state of gasket
WO2019003838A1 (en) * 2017-06-30 2019-01-03 富士フイルム株式会社 Pressure measurement material

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004317510A (en) * 2003-04-11 2004-11-11 Hilti Ag Measuring instrument
JP4719426B2 (en) * 2003-04-11 2011-07-06 ヒルティ アクチエンゲゼルシャフト measuring device
JP2010127298A (en) * 2008-11-25 2010-06-10 Nippon Fastener Kogyo Kk Washer
JP2011058913A (en) * 2009-09-09 2011-03-24 Railway Technical Res Inst Measurement system and measurement method of earthquake impact force
JP2011094975A (en) * 2009-10-27 2011-05-12 Railway Technical Res Inst System and method for measuring earthquake impact force
JP2011094976A (en) * 2009-10-27 2011-05-12 Railway Technical Res Inst System and method for measuring earthquake impact force
JP2016031393A (en) * 2014-07-27 2016-03-07 日本バルカー工業株式会社 Teaching or training device of tightened state of gasket
WO2019003838A1 (en) * 2017-06-30 2019-01-03 富士フイルム株式会社 Pressure measurement material
JPWO2019003838A1 (en) * 2017-06-30 2020-01-16 富士フイルム株式会社 Material for pressure measurement
CN110741237A (en) * 2017-06-30 2020-01-31 富士胶片株式会社 Material for pressure measurement

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